Related Clues:

• Derby entrant
• Stable mother?
• Sea, to Seneca
• Ms Clydesdale
• Old gray one of song
• Act rowdily
• "Giddyap!" obeyer
• See 20
• See 27
• See 13
• Animal put on dark work clothes, etc
• Smack the pony
• Well-shod, she (or he, perhaps) might be a winner
• Sixth or seventh part of an animal
• Water supply about right for the one you can take to it